Normalising NCIT ids to be more interoperable with other OBO ontologies?

[matentzn]

CLO is using NCIT identifiers such as:

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Amniotic_Fluid http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Amniotic_Sac http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C103180 http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C107150 http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C15958 http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C21204 http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C66829 http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Chorionic_Villus http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Embryonic_Fluid http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Gonad http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Iliac_Vein

The usual OBO Ids for these are: http://purl.obolibrary.org/obo/NCIT_C43816

To make OBO ontologies more interoperable, maybe it makes sense to normalise these to the OBO PURLs?

Note that CLO does not use all the ids above - these are the instances I found across the whole OBO foundry, but some of them come from CLO.

Context: Our grand OBO wide ID normalisation effort. https://github.com/orgs/OBOFoundry/projects/5

[matentzn]

Related: https://github.com/GenEpiO/genepio/issues/21